Qi Yingshan, a high school girl who loves piano, met Han Weican, a beautiful boy, on the campus balcony on an unlucky day. After that, the two developed an incomprehensible hatred. They gradually became familiar and vindictive enemies on campus. Who knew that Han Weican had already recognized Qi Yingshan as the girl who had made an agreement with him back then, but Qi Yingshan didn't know it.
Finally, Han Weican gradually developed feelings for Qi Yingshan.
With the help of their friends He Jiechao and Xia Moxiang, Han Weican and Qi Yingshan entered into a love affair with a time limit, which was the moment when the competition in which Qi Yingshan participated entered the finals.
After that, the two experienced a love life of lovers. At the same time, Han Weican's heart hurt by failed love in the United States was healed by Qi Yingshan, and Qi Yingshan gradually fell in love with Han Weican. However, at this time, the expiration date of their love gradually came.
The two of them were extremely anxious, not knowing what the other was thinking. At the same time, due to face and misunderstanding of each other's character, their love finally ended when the deadline came.
When the finals arrived in a blink of an eye, Qi Yingshan, who had left the United States, discovered that as time went by, her longing for Han Weican had not weakened, and was getting deeper and deeper. Finally, she mustered up the courage to ask her good friend Xia Moxiang about Han Weican's whereabouts, but what she found out was that he had also left the United States...